Evolution of Leber's miliary aneurysms: a clinicopathological study

Area of Science:

• Ophthalmology
• Pathology
• Vascular Biology

Background:

• Leber's miliary aneurysms (LMA) is a rare condition characterized by retinal vascular abnormalities.
• Coats' disease is an idiopathic retinal vascular anomaly often presenting in young males.
• The progression of LMA to Coats' disease is infrequently documented.

Observation:

• Two patients with LMA experienced a clinical evolution into Coats' disease.
• The transformation resulted in painful, blind eyes, with progression timelines of six years and four years respectively.
• Histopathological examination was performed on both affected eyes.

Findings:

• Histopathology confirmed neovascularization and the presence of pathological vessels in retinal layers.
• Vascular formations in the superficial corneal stroma periphery were noted in one case.
• Cholesterol clefts were observed, considered a consequence of chronicity rather than a primary feature.

Implications:

• This study provides histopathological evidence for the progression of LMA to Coats' disease.
• Understanding this progression aids in diagnosing and managing these complex retinal vascular conditions.
• The findings underscore the importance of long-term monitoring for patients with LMA.